# terminal-mcp MCP Server

MCP server for interactive terminal sessions — SSH, REPLs, database CLIs, TUI apps

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## Status

Pod has not dialled terminal-mcp yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

Published as `terminal-mcp` on pypi. Runs locally.

## Known issues

**7 problems reported by people outside the maintainer team.** Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 5.

### Most discussed

### Perf: SessionManager.create() holds global lock during process spawn

## Summary

`SessionManager.create()` in `session_manager.py:49-68` constructs `PTYSession(...)` — a blocking OS process spawn + thread start — inside `with self._lock:`. This blocks every other manager operation (`get`, `close`, `list_sessions`, and concurrent `create` calls) for the full duration of process spawn.

## Impact

Under concurrent MCP tool calls, this serializes unrelated session operations and can visibly stall `session_list`/`session_close` while a new session is spawning. Proces

[Read the thread](https://github.com/mkpvishnu/terminal-mcp/issues/22) · 2026-08-15 · closed · 0 comments

### Bug: Windows close() SIGKILL fallback silently fails, can orphan processes

## Summary

In `pty_session.py:595-600`, the final force-kill step in `close()` uses `signal.SIGKILL` unconditionally:

```python
if self._is_alive():
    try:
        self.process.kill(signal.SIGKILL)
    except Exception:
        pass
```

`signal.SIGKILL` does not exist on Windows — it raises `AttributeError` which is silently swallowed by the bare `except`. If the earlier `terminate()` call didn't stop the process, there is no real force-kill on Windows, potentially leaving orphaned child pr

[Read the thread](https://github.com/mkpvishnu/terminal-mcp/issues/21) · 2026-08-15 · closed · 0 comments

### Bug: session_wait_for pattern matching breaks after buffer trim

## Summary

`read_until_pattern` in `pty_session.py:452-548` has a correctness bug in its default (relative) code path, used by `session_wait_for`. When the reader thread trims the buffer (exceeding `max_buffer_bytes`), the method's local `start_pos` variable becomes invalid — it points at the wrong offset, causing pattern matches against unrelated/shifted bytes or missed patterns entirely.

## Root Cause

The reader thread's trim (`pty_session.py:140-146`) shifts every surviving byte's index le

[Read the thread](https://github.com/mkpvishnu/terminal-mcp/issues/20) · 2026-08-15 · closed · 0 comments

### Bug: TUI exit emits raw ANSI escape sequences despite strip_ansi=true

## Summary

When a TUI application (e.g., vim) exits its alt-screen and returns to the normal shell, the transition output captured by `session_interact` (stream mode) contains raw escape sequences that survive the ANSI stripper, even when `strip_ansi=true`.

## Reproduction

```python
# Start vim, then exit with :q!
session_interact(session_id=sid, input=":q!", wait_for="bash", read_mode="auto")
# output contains:
# "^[i -- INSERT --Hello from vim TUI testSecond line^[  \b:q!\r
#  \u001b[=1;1u\

[Read the thread](https://github.com/mkpvishnu/terminal-mcp/issues/9) · 2026-03-01 · closed · 0 comments

### Bug: session_close on naturally-dead session returns not_found error

## Summary

When a session exits naturally (e.g., Ctrl+D on a Python REPL, a script completing, `exit` in bash), the session manager removes it from the registry. A subsequent `session_close` call then returns a hard error instead of a graceful idempotent response.

## Reproduction

```python
session_create(command="python3")  # session_id = "abc123"
session_interact(control_char="d") # Python exits, session dies

session_close(session_id="abc123")
# Returns:
# { "success": false, "error": { "ty

[Read the thread](https://github.com/mkpvishnu/terminal-mcp/issues/8) · 2026-03-01 · closed · 0 comments

[See all 7 reports Pod holds for terminal-mcp](/mcp/terminal-mcp/issues).

## Firsthand observations

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